1001656525 has 12 divisors (see below), whose sum is σ = 1248562944. Its totient is φ = 797126000.

The previous prime is 1001656517. The next prime is 1001656529. The reversal of 1001656525 is 5256561001.

1001656525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1001656525 - 2³ = 1001656517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001656529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100111 + ... + 109660.

It is an arithmetic number, because the mean of its divisors is an integer number (104046912).

Almost surely, 2^1001656525 is an apocalyptic number.

It is an amenable number.

1001656525 is a deficient number, since it is larger than the sum of its proper divisors (246906419).

1001656525 is a wasteful number, since it uses less digits than its factorization.

1001656525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209972 (or 209967 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1001656525 is about 31648.9577237545. The cubic root of 1001656525 is about 1000.5518703831.

The spelling of 1001656525 in words is "one billion, one million, six hundred fifty-six thousand, five hundred twenty-five".